source: install/initboot.sh @ ac00c8f

#!/bin/bash
#Syn-3 diskinit (C)2005 DatuX 
#-Combine all the specified partitions into a Syn-3 bootable md0 device.
#-Partitions should be type FD

.       dialoglib.sh || exit 1

exec 2>&1


PART_COUNT=0
for PART in $*; do 
        echo -e "\n* Clearing parition $PART:"

        #remove raid partition superblocks
        #(may fail)
        mdadm --misc --zero-superblock --force $PART &>/dev/null 
        
        #remove other confusing stuff thats in the partition            
        dd if=/dev/zero of=$PART count=1 &>/dev/null || exit 1
        (( PART_COUNT++ ))

done

# create BOOT raid array md0, always RAID 1
# We create 5 extra missing discs, so that all new discs automatically
# become bootable. (we don't want hot spares for md0!)
echo -e "\n* Creating Boot RAID ARRAY (md0):"
(( TOTAL = PART_COUNT + 5 ))
mdadm --create --run --metadata=1.0 -l1 -n$TOTAL -amd /dev/md0 $* missing missing missing missing missing || exit 1




####################### Create filesystems 
# Boot will be in /dev/md0 

#create filesystems
echo -e "\n* Creating filesystem:"
##clear all previous xfs superblock, if its still there
##dd if=/dev/zero of=/dev/md0 bs=1M count=1 &>/dev/null
mkfs.ext3 -F -O '^64bit' /dev/md0 -L BOOT || exit 1


echo -e "\n* DONE"
#release the flying monkeys:
exit 0